Warhammer 40,000: Mechanicus - Heretek

Jun 4, 2020

Heretek is the expansion to the critically acclaimed tactical turn-based Warhammer 40,000: Mechanicus. Opening a whole new plot line, Heretek exposes the dark underbelly of the Adeptus Mechanicus faction like never before. Brand new narrative events have been handcrafted once again by Ben Counter, allowing players to uncover what has brought civil unrest to The Caestus Metalican during its. Heretek is the expansion to the critically acclaimed tactical turn-based Warhammer 40,000: Mechanicus. Opening a whole new plot line, Heretek exposes the dark underbelly of the Adeptus Mechanicus. Warhammer 40000: Mechanicus is a turn-based tactics title where players control the Adeptus Mechanicus tech priests as they stumble onto a planet with one of the deadliest enemies they’ve ever faced. My review of the base game can be found here, but the subject of this review is the latest update and newest addition, called Heretek. The world of Warhammer 40,000: Mechanicus is growing with a new expansion, Heretek. This addition to the critically acclaimed turn-based tactical PC game opens up a storyline that exposes the dark underbelly of the Adeptus Mechanicus like never before.

Guide, tips and hints for the Xerxete's first mission, 'Enemies closer' - Stop the rebellion.

Warhammer 40,000: Mechanicus, Heretek DLC - Mission 1 (Video Game) Gallery. The treacherous Cyclothrathe heretek, Archmagos Draykavac, during the Horus Heresy. A Heretek of the Dark Mechanicum. A Heretek displaying Chaos mutations. Heretek with Chaos Sorcerer ally.

Guide to First Xerxete's Mission


Enemies closer is the first mission of the series for Xerxetes. It's one of the more difficult missions in the game, so I've decided to write a guide for it. This is not a detailed walkthrough of the mission telling you what to do, but rather a guide that tells you about the options and approaches.

Warhammer 40k Mechanicus Metacritic

Rewards depend on a difficulty level (or are random per save?).
Mission begin with a dialog:
  • Xerxetes: Your attention, Magos!
  • Faustinius: My attention is on Silva Tenebris, Xerxetes. I must trust you to fulfill your duties as Subtribune without my oversight.
  • Xerxetes: We cannot neglect the security on board the Caestus Metalican! I bring news of a violent uprising among the lower ranks of the Tech-Priests and menials on the enginarium decks.
  • Faustinius: An uprising? This is the last thing we need. I permit myself to experience frustration at this news. Your solution, Subtribune?
  • Xerxetes: There is but one solution to malcontents and rebellion, Magos! It is as the discipline of Physics states it: Force always wins!

And so, the mission begins...

Pre-Battle Hints

You will soak a lot of physical damage in melee range and acid damage over time. Take all physical armor items you can, they are more important than just buffing your health (though if you do have just base-10 health units - I would recommend skipping this mission until you are ready)

Warhammer 40k Mechanicus Multiplayer

All major enemies (tech-priests) start being untargettable until they make their first attack, which will be really punishing. Additionally, they can gain 100% dodge chance against all attacks with a cooldown of 2 turns.
  • Healing items are a must.
  • You can disable the untargettability by triggering an opportunity attack (enter then exit melee range).
  • Upgraded Servo-Skull and acid will still do damage, even if an enemy has 100% dodge chance.
  • You always should know which tech-priest is on 100% dodge and which one has used his opportunity attack. Sadly you have to memorize it, as there's no display in the game itself.

A lot of tutorials don't say it, so: Remember that if you do unlock a weapon or an item - you can equip it on all of your tech-priests. Even if it seems like there's just one in the inventory.
If you have abilities with timeouts - try to use them as soon as sensible (just remember to manage cognition points). Also consider having at least 1 CP-free weapon for each of your Tech-Priests, as this will be a long and CP-expensive mission. Also I would advise using your servo-skulls primarily for collecting CP, even if you have 2 or 3 unused at the end of your turn.
Note that during the turn enemy can either move and shoot or 'Sprint' for double the movement range, but no attack. If enemy enters your melee range after the sprint - you will still be locked into the opportunity shot. It can lead to the situations like this:

Choice 1: Objective

The first choice declares the mission objectives.
Options give respectively:
  • Information warfare - Scan or destroy - objective is to scan OR destroy a console.
  • Follow-up objective if any tech-priests are alive: Survive 3 rounds.
  • Sample gameplay video.

  • Justice through firepower - Survive 6 rounds - this can be done by kiting the enemies. Optimally take 2 tech-priests with movement buffs + 1 healing item each. After completing this mission 4 times I have found this objective to be the easiest one.
  • Follow-up objective if any tech-priests are alive: None.

  • Decapitation - Kill or destroy targets - you're supposed to destroy the leaders, however, there is no telltale which tech-priests are the leaders. Very likely you have to kill all but 2?
  • Follow-up objective if any tech-priests are alive: Survive 3 rounds.
  • Sample gameplay video.

Note that even if you do not pick the Information warfare objective - the console will still be there and scanning it will grant you Blackstone as usual.

Choice 2: Starting Positions

This allows you to pick the starting positions. Here are the screenshots of each one with a potential synergies to the objectives:
Up the Middle
  • Good for the Decapitation objective.

Flanking Manoeuvae
  • Best for the Information Warfare, alternative for the Justice Through Firepower.

Shooting Gallery
  • Best for the Justice Through Firepower or in general: kiting-based gameplay.

Choice 3: Chance to Strike a Blow

Silent Strike - Kill 1 Tech-Priest
  • IMHO by far most beneficial one. tech-priests are by far the most challenging opponents. In the pure damage terms, it's equal up to 12 damage points excluding armor, but each priest can trigger a 1 turn of 100% dodge chance + they have both types of armor, making it realistically a significant relief.

All Out - +5 Cognition Points
  • Worth it only if you can trigger Tech Priest's opportunity attack on the first move of the turn and kill him before he makes his action or if you have chosen Justice through firepower objective and want to spawn troopers that will go through a different lane than the one you've picked (I would recommend Skitarii Ranger Alpha, as he can avoid Opportunity attacks).

Go Loud - Kill 2 Servitors
  • It's equal up to 14 damage points (each servitor has 7 health excluding armor, servitors have 0-1 physical/energy armor, never both).


Xenarite Tech-Priest
  • Melee weapon (level 2 Xenarite Axe, adds 1 acid damage for 3 turns on top of a regular attack).
  • Cog Occultaris (Untargetable until first attack of the match, +50% critical chance for the first attack).
  • Omnispex 3 (Target enemy gains a 100% miss chance on attacks for 1 round, Cooldown 2).
  • The spike'y thing (does direct damage at melee range).

Xenarite Tech-Priest using Omnispex
Impossible to target until the first attack
  • First attack can be triggered either by letting enemy start his turn within his movement range or by triggering Opportunity attack (enter and exit melee range during your turn, or exit melee after enemy has sprinted within your melee range)

Xenarite Servitor
  • Modified Servitor [lvl 3]. Energy or Physical Armor 0-3 (note that 3 armor servitors are very rare), Physical damage 1-3.


Below you can find a downscaled composite map of the mission. It's meant to be used only as a general overview, don't try to count individual squares of it, as it took many, many screenshots to build it and there are shifts of perspective as the camera moved over the battlefield. Sadly the game currently does not allow you to display the top-down perspective of the whole map at a glance.

Mission Complete

This is the ending for the Justice through firepower objective:
Warhammer 40,000: Mechanicus - HeretekMission Complete
With their servitors inactive or destroyed, the rebels are overwhelmed by the cohort's assault. The traitous Tech-Priests are cut down or flee into the labyrinth of the Caestus Metalican's interior. The true mission has only just begun, however. What prompted this rebellion? And are their leaders truly all dead?
  • Xerxetes: Our triumph was inevitable, Magos! The only language the rebel understands is violence, and our statement has been made.
  • Faustinius: A victory indeed, Subtribune, but it is not an answer.
  • Tiresus: Magos, I have recovered the internal databanks of one of the rebel Tech-Priests. They were heavily encrypted, in contravention of all regulations.
  • Faustinius: Then they were hiding something. Can you recover any data?
  • Tiresus: Only a fragment. It is a name. 'Epsilus Dammek-Yoth'. It means nothing to me, I fear.
  • Faustinius: Nor I, Xenobiologis Tiresus.
  • Scaevola: [formal request][formal speech mode] Magos, a moment of your time, if I may, in private.
  • Faustinius: Be quick, Tech-Acquisitor. Matters requiring my attention have multiplied.
  • Scaevola: Recollection begins: Epsilus Dammek-Yoth. [Designate] Arch-Heretek. [Origin] Stygies VIII. Classification status = Secretum Omega.
  • Faustinius: You have heard of this Epsilus? An arch-heretek? I am forced to quarantine great consternation at this knowledge. You believe their followers are on the Caestus Metalican?
  • Scaevola: Certanity < 30% error: insufficient data. [Format recommendation] seek additional input.
  • Faustinius: The quest for more information never ends. I would know more of this Epsilus Dammek-Yoth, Scaevola. Keep me informed of what you find.

Recommended for You:
  • All Warhammer 40.000 Mechanicus Guides!

Warhammer 40k Mechanicus

You May Also Like:

Purge The Non-Believers

HIGH New maps and characters.

LOW The additional story is a bit lackluster.

Mechanicus 40k

WTF The class that “hurts so good”

Warhammer 40000: Mechanicus is a turn-based tactics title where players control the Adeptus Mechanicus tech priests as they stumble onto a planet with one of the deadliest enemies they’ve ever faced.

My review of the base game can be found here, but the subject of this review is the latest update and newest addition, called Heretek. While the priests are fighting the Necrons on the surface of the planet, rogue priests are starting to organize on the spaceship orbiting the planet. Not only must they defeat enemies outside, but enemies within.

So what’s new with this add-on? Mostly a new mechanic — stealth.

Many of the new items and enemies utilize energy fields that will make a unit untargetable until they strike an enemy. Another addition is the acid ability on weapons that will eat through a character’s health each turn. Previously only available to enemies, now usable for the tech priests of the Mechanicus. Heretek also adds a new discipline of the Xenarite. These tech priests use forbidden xenotech to sacrifice their own health and empower themselves, with some even being able to cheat death.

Heretek has also added a few melee guns, which helps make one of the tech trees more viable as an option. Tech priests are allowed to equip one melee weapon and up to two ranged weapons, but one skill tree requires a priest to only use a melee weapon. These new options allows players to make those units more useful in a fray.

Along with the new tech comes two new troops. The tech priests can now employ Sicarian Infiltrators (assassins) which start in stealth when summoned into battle. The new, deadly Ruststalkers are a class that can bypass enemy armor when they strike.

Sadly, though, the stealth makes a game that was already easy to break even easier to break. Equipping stealth on every priest is simple and cheap, and it allows players to move with little resistance — it’s such an advantage that most missions in this strategy title can now be completed almost without thought.

Despite the overpowered nature of the stealth, Heretek does include enough new content to whet the appetite of Mechanicus fans and gives them good reason to come back. The new battlegrounds are a nice reprieve from the planet scenarios of the core campaign, and the new items and units give players more choices. All in all, it brings glory to the Omnisaiah once again.

Rating: 7 out of 10

Disclosures: This game is developed by Bulwark Studios and published by Kasedo Games. It is currently available on Steam. This game was obtained via publisher and reviewed on Steam. Approximately 10 hours were spent in single player mode, and the content was completed. There is no multiplayer.

Parents: The content’s ESRB rating is currently pending according to the developer’s press kit, but in my view it contains Violence and Language, same as the original game. Teenage audiences and up advised.

Colorblind Modes: There are no colorblind modes.

Deaf & Hard of Hearing Gamers: All dialogue in the game is done through text boxes, but none of the text boxes are resizable. There are no audio cues needed for play. It’s fully accessible.

Remappable Controls: Controls are completelyremappable.

Eugene Sax

Eugene grew up playing other people’s videogames. He didn’t have his own console for some time, and has many memories of playing games his friends owned and beating them. Once he saved up enough money, he finally bought a Sega Genesis secondhand and started a gaming library of his own.
While Sonic and Street Fighter were great places to start, his first love was Final Fantasy X when his dad bought a PS2. Ever since, that love for gaming has evolved -- there are a number of game worlds out there, and he intends to explore them all. RPG to horror, platformers to casual and everything in between -- if it’s available, he’ll play it.
While his time is short between writing reviews, tabletop gaming, and attempting to start a cheesecake business, he has caught all 806 pokemon and can speedrun Star Fox 64 in less than 40 minutes. He’s always looking for new things to try and new challenges to conquer. You can find him on Twitter -- @eugene_sax.

Latest posts by Eugene Sax (see all)

  • Tears of Avia Review - December 10, 2020
  • Disc Room Review - November 29, 2020
  • Re:Turn – One Way Trip Review - November 20, 2020
Tags: BulwarkEugene SaxheretekKasedoTacticsWarhammer 40K